Cast & Forged Part
Imp. & Exp. Agent
Chemical name and
Chemical name and structure：Hydroxyethyl Cellulose (HEC)
Chemical name and structure：Ethyl Cellulose (EC)
Sodium Carboxymethyl Cellulose（CMC）
High-substituted hydroxyproxyl cellulose（H—HPC）
Hydroxypropyl emthylcellulose (HPMC)
一、Chemical name and structure： Hydroxypropyl emthylcellulose (HPMC)
n:degree of polymerization,R:-CH3 or -H or -CH2CHOHCH3
二、Technical index： (accord with USP24 and EP)
Notice:in 60ZC50,60:gelatification temperature,50:viscosity,
Viscosity specification :
Notice:viscosity of 2% water solution *viscosity of 1% water solution in 20°C
1. Appearance: white or off-white powder
2. Particle size: throughout efficiency of above 98.5% in 100 mesh, and 100% in 80 mesh.
3. Carbonization temperature: 280-300
4. Apparent density: 0.25-0.70g.cm3(usually about 0.5g/cm3), specific gravity: 1.26-1.31.
5. Color degradation temperature: 190-200
6. Surface tension: 42-56dyn/cn (2% aqueous solution)
7. Soluble in water and some organic solvents: its aqueous solution is of surface tension, high transparency and stable property. The solubility varies with the viscosity, the lower the viscosity is, and the higher solubility it has. The different HPMC is different in some properties and its solubility in water is not affected by pH
8. The surface activity decreases with the lower content of methoxyl, the higher temperature of gelatification, and the lower solubility in water.
9. HPMC has also other characteristic such as thickening property, pH stability, water retention, excellent film-forming property and good disperse and adhesion power.
● Transportation: transport according to the damp-proof ordinary chemicals
Cast & Forged Parts:
Agent service for import and export business:
According to the requests from the clients, we are able to apply and declare to Custom for international trading.
We complete import and export services by outsourcing the job to professional staff. It is a high-effective way for clients.
The professional staffs fulfill these process for clients by preparing well all necessary documents, to declare to China Custom and settle down involved government departments. The procedure will be handled rapidly Meanwhile, we could give the workable suggestion to clients accordingly.
The service charge will depends on particular the situation by case. Mostly it costs in 2% ~ 5% of the total amount.